skip to main content

DOE PAGESDOE PAGES

Title: Broadband imaging with one planar diffractive lens

We demonstrate imaging over the visible band using a single planar diffractive lens. This is enabled via multi-level diffractive optics that is designed to focus over a broad wavelength range, which we refer to as an achromatic diffractive lens (ADL). We designed, fabricated and characterized two ADLs with numerical apertures of 0.05 and 0.18. Diffraction-limited focusing is demonstrated for the NA = 0.05 lens with measured focusing efficiency of over 40% across the entire visible spectrum (450 nm to 750 nm). We characterized the lenses with a monochromatic and a color CMOS sensor, and demonstrated video imaging under natural sunlight and other broadband illumination conditions. We use rigorous electromagnetic simulations to emphasize that ADLs can achieve high NA (0.9) and large operating bandwidth (300 nm in the visible spectrum), a combination of metrics that have so far eluded other flat-lens technologies such as metalenses. Here, these planar diffractive lenses can be cost-effectively manufactured over large areas and thereby, can enable the wide adoption of flat, low-cost lenses for a variety of imaging applications.
Authors:
 [1] ;  [1] ;  [2] ;  [3] ;  [1]
  1. Univ. of Utah, Salt Lake City, UT (United States)
  2. MACOM Technology Solutions, Ithaca, NY (United States)
  3. California Inst. of Technology (CalTech), Pasadena, CA (United States)
Publication Date:
Grant/Contract Number:
EE0005959
Type:
Accepted Manuscript
Journal Name:
Scientific Reports
Additional Journal Information:
Journal Volume: 8; Journal Issue: 1; Journal ID: ISSN 2045-2322
Publisher:
Nature Publishing Group
Research Org:
Univ. of Utah, Salt Lake City, UT (United States)
Sponsoring Org:
USDOE
Country of Publication:
United States
Language:
English
Subject:
47 OTHER INSTRUMENTATION
OSTI Identifier:
1500121

Mohammad, Nabil, Meem, Monjurul, Shen, Bing, Wang, Peng, and Menon, Rajesh. Broadband imaging with one planar diffractive lens. United States: N. p., Web. doi:10.1038/s41598-018-21169-4.
Mohammad, Nabil, Meem, Monjurul, Shen, Bing, Wang, Peng, & Menon, Rajesh. Broadband imaging with one planar diffractive lens. United States. doi:10.1038/s41598-018-21169-4.
Mohammad, Nabil, Meem, Monjurul, Shen, Bing, Wang, Peng, and Menon, Rajesh. 2018. "Broadband imaging with one planar diffractive lens". United States. doi:10.1038/s41598-018-21169-4. https://www.osti.gov/servlets/purl/1500121.
@article{osti_1500121,
title = {Broadband imaging with one planar diffractive lens},
author = {Mohammad, Nabil and Meem, Monjurul and Shen, Bing and Wang, Peng and Menon, Rajesh},
abstractNote = {We demonstrate imaging over the visible band using a single planar diffractive lens. This is enabled via multi-level diffractive optics that is designed to focus over a broad wavelength range, which we refer to as an achromatic diffractive lens (ADL). We designed, fabricated and characterized two ADLs with numerical apertures of 0.05 and 0.18. Diffraction-limited focusing is demonstrated for the NA = 0.05 lens with measured focusing efficiency of over 40% across the entire visible spectrum (450 nm to 750 nm). We characterized the lenses with a monochromatic and a color CMOS sensor, and demonstrated video imaging under natural sunlight and other broadband illumination conditions. We use rigorous electromagnetic simulations to emphasize that ADLs can achieve high NA (0.9) and large operating bandwidth (300 nm in the visible spectrum), a combination of metrics that have so far eluded other flat-lens technologies such as metalenses. Here, these planar diffractive lenses can be cost-effectively manufactured over large areas and thereby, can enable the wide adoption of flat, low-cost lenses for a variety of imaging applications.},
doi = {10.1038/s41598-018-21169-4},
journal = {Scientific Reports},
number = 1,
volume = 8,
place = {United States},
year = {2018},
month = {2}
}

Works referenced in this record:

Aberration-Free Ultrathin Flat Lenses and Axicons at Telecom Wavelengths Based on Plasmonic Metasurfaces
journal, January 2012
  • Aieta, Francesco; Genevet, Patrice; Kats, Mikhail A.
  • Nano Letters, Vol. 12, Issue 9, p. 4932-4936
  • DOI: 10.1021/nl302516v

Flat optics with designer metasurfaces
journal, February 2014
  • Yu, Nanfang; Capasso, Federico
  • Nature Materials, Vol. 13, Issue 2, p. 139-150
  • DOI: 10.1038/nmat3839

Multiwavelength achromatic metasurfaces by dispersive phase compensation
journal, February 2015

Ultra-high-efficiency metamaterial polarizer
journal, January 2014

Recent progress in nanoimprint technology and its applications
journal, May 2004

Generating optical orbital angular momentum at visible wavelengths using a plasmonic metasurface
journal, May 2014
  • Karimi, Ebrahim; Schulz, Sebastian A.; De Leon, Israel
  • Light: Science & Applications, Vol. 3, Issue 5, p. e167-e167
  • DOI: 10.1038/lsa.2014.48